/*
 *
 *  Copyright (C) 2010 Tal Eisenberg
 *
 *  This program is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation, either version 3 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

package base;

import java.util.ArrayList;
import java.util.List;
import tal.drivechain.matchers.VarMatcher;
import tal.drivechain.plugin.Module;
import tal.drivechain.variable.Variable;
import tal.drivechain.expression.dcExpression;

import tal.drivechain.plugin.Channel;
import tal.drivechain.plugin.Logger;
import tal.drivechain.variable.SetProperty;

/**
 *
 * @author Tal Eisenberg
 */
public class Print extends Module {
    List<Object[]> triggerExpression;
    
    @Override
    public void setupProperties() {
        setTriggerExpression(props.getProperty("triggerExpression"), null);
    }
    
    public void setTriggerExpression(Object value, SetProperty.Flag flag) {
        if (triggerExpression == null) triggerExpression = new ArrayList<Object[]>();
        if (flag == SetProperty.Flag.REPLACE)
            triggerExpression = (List)value;
        else
            triggerExpression.addAll((List)value);
    } public Object getTriggerExpression() { return triggerExpression; }
    
    @Override
    protected void msgReceived(Variable in, long timestamp, Channel channel) {
        for (Object[] item : triggerExpression) {
            VarMatcher trigger = (VarMatcher)item[0];
            if (trigger.matches(in, channel, this)) {
                try {
                    for (Logger l : loggers) {
                        l.println("\n" + ((dcExpression)item[1]).evaluate(this));
                    }
                } catch (Exception e) {
                    log(e.getMessage(), MSG.WARNING);
                }
            }
        }
    }
    
    public void commandPrint(List<Variable> parameters) {
        if (parameters!=null && parameters.size()==1) {
            try {
                for (Logger l : loggers)
                    l.println(parameters.get(0).getValue(this).toString());
            } catch (Exception e) {
                log(e.getMessage(), MSG.WARNING);
            }
        } else {
            log("Invalid command parameters: " + parameters.toString(), MSG.WARNING);
        }
    }
}